Samuel f



(No Model.)

S. F. BERRY.

` LOCK SNAP HOOK. No. 462,465. Patented Nov. 3, 1891.

'5o In the drawings, Figure 1 N iTEn STATES PATENT OFFICE.

SAMUEL F. BERRY, OF TOLEDO, OHIO, ASSIGNOR OF ONE-HALF TO VILLIAM lrI. ATVVIIAL, OF SAME PLACE.

LOCK-SNAP HOOK.

SPECIFICATION forming part of.' Letters Patent No. 462,465, dated November 3, 1891.

Application led April 9, 1891. Serial No. 388,220. (No model.)

To all whom, it may concern.-

Be it known that I, SAMUEL F. BERRY, of Toledo, county of Lucas, and State of Ohio, have invented certain new and useful Improvements in Lock-Snap Ilooks; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the saine,

xo reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form part of this speciication.

My invention relates to a lock-snap hook,

i 5 and has particular reference to that class of hooks used upon the tugs, straps, rbc., of harness.

The object of theinvention is to provide a hook of inexpensive construction and that 2o shall be provided withan automatic locking mechanism, whereby a ring or other object secured within the hook will be locked from accidental disconnection therefrom, and also with means for conveniently releasing the z5 locking mechanism when it is desired to remove the ring or other object from the snap.

Theinvention consists in the parts and combination of parts hereinafter described,and pointed out in the claims.

is a side elevation of one form ot' hook provided with my improved lock-snap. Fig. 2 is a longitudinal vertical sectional view of the same. Fig. 3 is a transverse section on lines .r Fig.

2. Fig. 4. is a like View showing the hook concave upon the inner face,with the revoluble disk or snap conveXed to fit the same.

1 designates the hook, in the present instance shownas an ordinary harness-hook, although I wish it to be understood that the construction, forni, and size of the hook may be varied to suit the different classes of work to which it may be put.

2 designates a circular recess formed by the bend of the hook and into which is revolubly secured a snap or disk 3, said disk 3 being held within the recess 2, with the periphery in close contact with the inner side of the chamber and held in place by means of the 5o projecting edges of the disk contacting with the sides of the hook. The disk 3 is formed of two like sections, as shown in Fig. 3, having a circular portion 4C of a diameter to lit Within the recess ot' the hook, and side flanges 5 to bear against the side of the hook, or, as 5 5 shown in Fig. 4., the recess is concaved in form in cross-section and the periphery of the disk convex to lit the saine, the two sections of disk being secured together by screws or pins 6.

It will be seen by the foregoing descrip- 6o tion that the disk is revolubly secured withinl the hook without the necessity of journals of any character, thereby giving to the bearing the full strength of the hook or disk and rendering this part of construction very simple and inexpensive.

Disk 3 is chambered at 7 to form a semicircular recess of a shape to allow of inserting a ring of the desired size therein and allow the disk to revolve, carrying the ring be- 7o youd opening S of the hook, thereby securing the ring within the hook, as is clearly illustrated by the positions of disk in Figs. 1 and 2. A

In order to lock the snap or disk 8, I form a perforation 9 in the disk and provide a locking-pin 10, adapted to enter the perforation when the disk is turned in the position shown in Fig. 1. Pin 10 is secured in a lever 1],secured in a chamber 12,forn1ed in the body ot' 8o the hook, the lever being secured therein by means of a fulcrum-pin 13 and urged ou tward at the end opposite to the pirlby means of a spring 14, whereby the tendency` of pin 10 is to bearupon the periphery of the disk until the perforation is brought into coincidence with the pin when it enters the perforation and locks the disk from revolution, thereby positively securing the ring or other object Within the hook. 9o

In operation, the snap or disk being in the position shown in Fig. 2, the ring or other object is passed through the opening in the hook and is seated in the semicircular recess 7, when by a pull upon the ring the snap is caused to revolve until in the position shown in Fig. 1, when pin 10 enters the perforation 9 and locks the snap in place. In order to release the ring from the hook, the end of the lever opposite to the pin is depressed, with- 10c side, a spri 11g-actuated lever fulcrumecl within the chamber and carrying a, locking-pin, and a chainbered snap or disk revolubly secured in the recess of the hook termed with a perforation adapted to receive the locking-pin.

In testimony that I claim the foregoing as my own I hereby afix my signature in presence of two Witnesses.

SAMUEL F. BERRY.

Witnesses:

WILLIAM VEBSTER, CARROLL J. XVEBSTER. 

